From 5f91a787afcebae37b5e22ab0dfe93b2a9794226 Mon Sep 17 00:00:00 2001
From: Jed Barber <jjbarber@y7mail.com>
Date: Sat, 6 May 2017 14:06:32 +1000
Subject: Draw method overriding implemented for Widgets, fixed for Menus,
 still needs cleaning up

---
 src/c_fl_widget.cpp | 94 +++++++++++++++++++++++++++++++++++++++++------------
 1 file changed, 73 insertions(+), 21 deletions(-)

(limited to 'src/c_fl_widget.cpp')

diff --git a/src/c_fl_widget.cpp b/src/c_fl_widget.cpp
index 30c4de3..4e9f2fb 100644
--- a/src/c_fl_widget.cpp
+++ b/src/c_fl_widget.cpp
@@ -5,115 +5,167 @@
 #include "c_fl_widget.h"
 
 
+typedef void (hook)(void*);
+typedef hook* hook_p;
+
+
+
+
+class My_Widget : public Fl_Widget {
+    public:
+        using Fl_Widget::Fl_Widget;
+        friend void widget_set_draw_hook(WIDGET w, void * d);
+        friend void fl_widget_draw(WIDGET w);
+        friend WIDGET new_fl_widget(int x, int y, int w, int h, char* label);
+    protected:
+        void draw();
+        void real_draw();
+        hook_p draw_hook;
+};
+
+
+void My_Widget::draw() {
+    (*draw_hook)(this->user_data());
+}
+
+
+void My_Widget::real_draw() {
+    //Fl_Widget::draw();
+}
+
+
+void widget_set_draw_hook(WIDGET w, void * d) {
+    reinterpret_cast<My_Widget*>(w)->draw_hook = reinterpret_cast<hook_p>(d);
+}
+
+
+void fl_widget_draw(WIDGET w) {
+    reinterpret_cast<My_Widget*>(w)->real_draw();
+}
+
+
+
+
+WIDGET new_fl_widget(int x, int y, int w, int h, char* label) {
+    My_Widget *wd = new My_Widget(x, y, w, h, label);
+    return wd;
+}
+
+
+void free_fl_widget(WIDGET w) {
+    delete reinterpret_cast<My_Widget*>(w);
+}
+
+
 
 
 void * fl_widget_get_user_data(WIDGET w) {
-    return reinterpret_cast<Fl_Widget*>(w)->user_data();
+    return reinterpret_cast<My_Widget*>(w)->user_data();
 }
 
 
 void fl_widget_set_user_data(WIDGET w, void * d) {
-    reinterpret_cast<Fl_Widget*>(w)->user_data(d);
+    reinterpret_cast<My_Widget*>(w)->user_data(d);
 }
 
 
 
 
 int fl_widget_get_box(WIDGET w) {
-    return reinterpret_cast<Fl_Widget*>(w)->box();
+    return reinterpret_cast<My_Widget*>(w)->box();
 }
 
 
 void fl_widget_set_box(WIDGET w, int b) {
-    reinterpret_cast<Fl_Widget*>(w)->box(static_cast<Fl_Boxtype>(b));
+    reinterpret_cast<My_Widget*>(w)->box(static_cast<Fl_Boxtype>(b));
 }
 
 
 const char* fl_widget_get_label(WIDGET w) {
-    return reinterpret_cast<Fl_Widget*>(w)->label();
+    return reinterpret_cast<My_Widget*>(w)->label();
 }
 
 
 void fl_widget_set_label(WIDGET w, const char* t) {
-    reinterpret_cast<Fl_Widget*>(w)->copy_label(t);
+    reinterpret_cast<My_Widget*>(w)->copy_label(t);
 }
 
 
 int fl_widget_get_label_font(WIDGET w) {
-    return reinterpret_cast<Fl_Widget*>(w)->labelfont();
+    return reinterpret_cast<My_Widget*>(w)->labelfont();
 }
 
 
 void fl_widget_set_label_font(WIDGET w, int f) {
-    reinterpret_cast<Fl_Widget*>(w)->labelfont(static_cast<Fl_Font>(f));
+    reinterpret_cast<My_Widget*>(w)->labelfont(static_cast<Fl_Font>(f));
 }
 
 
 int fl_widget_get_label_size(WIDGET w) {
-    return reinterpret_cast<Fl_Widget*>(w)->labelsize();
+    return reinterpret_cast<My_Widget*>(w)->labelsize();
 }
 
 
 void fl_widget_set_label_size(WIDGET w, int s) {
-    reinterpret_cast<Fl_Widget*>(w)->labelsize(static_cast<Fl_Fontsize>(s));
+    reinterpret_cast<My_Widget*>(w)->labelsize(static_cast<Fl_Fontsize>(s));
 }
 
 
 int fl_widget_get_label_type(WIDGET w) {
-    return reinterpret_cast<Fl_Widget*>(w)->labeltype();
+    return reinterpret_cast<My_Widget*>(w)->labeltype();
 }
 
 
 void fl_widget_set_label_type(WIDGET w, int l) {
-    reinterpret_cast<Fl_Widget*>(w)->labeltype(static_cast<Fl_Labeltype>(l));
+    reinterpret_cast<My_Widget*>(w)->labeltype(static_cast<Fl_Labeltype>(l));
 }
 
 
 void * fl_widget_get_parent(WIDGET w) {
-    return reinterpret_cast<Fl_Widget*>(w)->parent();
+    return reinterpret_cast<My_Widget*>(w)->parent();
 }
 
 
 
 
 void fl_widget_set_callback(WIDGET w, void * cb) {
-    reinterpret_cast<Fl_Widget*>(w)->callback(reinterpret_cast<Fl_Callback_p>(cb));
+    reinterpret_cast<My_Widget*>(w)->callback(reinterpret_cast<Fl_Callback_p>(cb));
 }
 
 
 
 
 int fl_widget_get_x(WIDGET w) {
-    return reinterpret_cast<Fl_Widget*>(w)->x();
+    return reinterpret_cast<My_Widget*>(w)->x();
 }
 
 
 int fl_widget_get_y(WIDGET w) {
-    return reinterpret_cast<Fl_Widget*>(w)->y();
+    return reinterpret_cast<My_Widget*>(w)->y();
 }
 
 
 int fl_widget_get_w(WIDGET w) {
-    return reinterpret_cast<Fl_Widget*>(w)->w();
+    return reinterpret_cast<My_Widget*>(w)->w();
 }
 
 
 int fl_widget_get_h(WIDGET w) {
-    return reinterpret_cast<Fl_Widget*>(w)->h();
+    return reinterpret_cast<My_Widget*>(w)->h();
 }
 
 
 void fl_widget_size(WIDGET w, int d, int h) {
-    reinterpret_cast<Fl_Widget*>(w)->size(d, h);
+    reinterpret_cast<My_Widget*>(w)->size(d, h);
 }
 
 
 void fl_widget_position(WIDGET w, int x, int y) {
-    reinterpret_cast<Fl_Widget*>(w)->position(x, y);
+    reinterpret_cast<My_Widget*>(w)->position(x, y);
 }
 
 
 void fl_widget_set_image(WIDGET w, void * img) {
-    reinterpret_cast<Fl_Widget*>(w)->image(reinterpret_cast<Fl_Image*>(img));
+    reinterpret_cast<My_Widget*>(w)->image(reinterpret_cast<Fl_Image*>(img));
 }
 
-- 
cgit